Utah Mom’s Shocking Betrayal: Poisoned Husband, Terrified Kids

A person wearing handcuffs with their hands clasped together

A Utah children’s book author convicted of poisoning her husband with fentanyl displayed cold indifference at her sentencing hearing while her three sons revealed the full extent of her cruelty—including killing their pets and the psychological torment that has left them fearing her release.

Quick Take

Kouri Richins, 36, was sentenced after a jury unanimously convicted her of aggravated murder, attempted murder, insurance fraud, and forgery in the death of her husband Eric in March 2022 [2]
Her three sons testified that Richins poisoned their pets, contradicted her alibi, and inflicted emotional abuse—with the oldest saying he does not miss her and wears his father’s clothes to school [2]
Prosecutors argued for life without parole, citing her lack of remorse, financial motive, and a post-verdict text in which Richins vowed to “expose” case participants [2]
The judge denied the defense motion to delay sentencing despite claims of attorney conflicts, prioritizing the May 13 hearing scheduled on what would have been Eric’s 44th birthday [1]

Jury Conviction After Minimal Deliberation

On March 16, 2026, a Utah jury unanimously convicted Kouri Richins of aggravated murder after deliberating for approximately three hours [1][2]. The jury found beyond reasonable doubt that Richins poisoned her husband Eric with a lethal dose of fentanyl in a Moscow Mule cocktail, motivated by financial gain and her desire to be with her boyfriend [1]. She was also convicted of attempting to murder Eric on Valentine’s Day 2022 by lacing his breakfast with fentanyl, as well as insurance fraud and forgery [1][2]. The swift verdict reflected the strength of prosecution evidence presented during the three-week trial.

Children’s Devastating Testimony Reveals Pattern of Abuse

During sentencing, Richins’ three sons delivered statements through their counselors that exposed a pattern of psychological abuse and animal cruelty. The oldest son, age 13, testified that he misses his father but explicitly stated he does not miss Kouri, and he wears his father’s clothes to school to feel close to him [2]. He expressed fear about her potential release from prison. The middle son recounted locked bedroom doors and loud noises on the night of Eric’s death, contradicting his mother’s alibi, and reported feeling safe only while she remains incarcerated [2]. The youngest son, deeply traumatized, revealed that Richins killed the family pets and stated that her presence makes him feel hateful and ashamed [2].

Prosecution’s Case for Life Without Parole

Prosecutors filed a sentencing memorandum arguing for life without parole, emphasizing Richins’ calculated motive for financial gain, her use of a lethal poisoning method, and the profound harm inflicted on her children [2]. The memorandum detailed two separate poisoning attempts—one on Valentine’s Day and the successful murder in March 2022—demonstrating premeditation and escalation [1]. Prosecutors highlighted Richins’ complete lack of remorse, citing a post-verdict text message in which she vowed to “expose” case participants, revealing her continued manipulative and vengeful mindset [2]. The state sought consecutive sentences and restitution in the millions of dollars.

Defense Motion Denied as Court Prioritizes Victims

Two weeks before the May 13 sentencing, the defense filed a motion requesting a delay, citing recent family death affecting one attorney and another attorney’s involvement in a separate trial scheduled for the same day [1]. The defense argued insufficient time to prepare mitigation evidence supporting a sentence of 25 years to life rather than life without parole. Judge Richard Mrazik denied the motion, prioritizing the rights of victims and their families [1]. The judge offered to accommodate an afternoon hearing if necessary, but declined to postpone, demonstrating the court’s commitment to proceeding with justice for Eric and his sons.

A Pattern of Calculated Deception

Beyond the murder itself, evidence revealed Richins’ broader pattern of deception and financial exploitation. Prosecutors introduced text messages showing that Richins did not actually write her children’s book “Are You with Me?”—marketed as her grief memoir to help children cope with loss—but instead hired a ghostwriter [4]. Her own notes and texts indicated she wrote the book primarily to “understand the book writing process” for future commercial projects, not to help her children grieve their father [4]. Detectives also discovered detailed notes in an orange notebook on her nightstand containing a timeline and planning details about the day of Eric’s death, further demonstrating premeditation [4].